Предмет: Геометрия, автор: Veronikanast

Помогите пожалуйста!!!2 задачи(желательно с подробным объяснением))7 класс

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Автор ответа: resheba3

0

1 задача
По свойству катета
${cb }^{2} = db \times ab$
Значит
$ab = \frac{ {cb}^{2} }{db}$
ab=12см

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